Astrophysical uncertainties on the local dark matter distribution and direct detection experiments
The differential event rate in weakly interacting massive particle (WIMP) direct detection experiments depends on the local dark matter density and velocity distribution. Accurate modelling of the local dark matter distribution is therefore required to obtain reliable constraints on the WIMP particl...
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| Format: | Article |
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IOP Publishing
2017
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| Online Access: | https://eprints.nottingham.ac.uk/43779/ |
| _version_ | 1848796766722326528 |
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| author | Green, Anne M. |
| author_facet | Green, Anne M. |
| author_sort | Green, Anne M. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The differential event rate in weakly interacting massive particle (WIMP) direct detection experiments depends on the local dark matter density and velocity distribution. Accurate modelling of the local dark matter distribution is therefore required to obtain reliable constraints on the WIMP particle physics properties. Data analyses typically use a simple standard halo model which might not be a good approximation to the real Milky Way (MW) halo. We review observational determinations of the local dark matter density, circular speed and escape speed and also studies of the local dark matter distribution in simulated MW-like galaxies. We discuss the effects of the uncertainties in these quantities on the energy spectrum and its time and direction dependence. Finally, we conclude with an overview of various methods for handling these astrophysical uncertainties. |
| first_indexed | 2025-11-14T19:53:12Z |
| format | Article |
| id | nottingham-43779 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:53:12Z |
| publishDate | 2017 |
| publisher | IOP Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-437792020-05-04T18:51:48Z https://eprints.nottingham.ac.uk/43779/ Astrophysical uncertainties on the local dark matter distribution and direct detection experiments Green, Anne M. The differential event rate in weakly interacting massive particle (WIMP) direct detection experiments depends on the local dark matter density and velocity distribution. Accurate modelling of the local dark matter distribution is therefore required to obtain reliable constraints on the WIMP particle physics properties. Data analyses typically use a simple standard halo model which might not be a good approximation to the real Milky Way (MW) halo. We review observational determinations of the local dark matter density, circular speed and escape speed and also studies of the local dark matter distribution in simulated MW-like galaxies. We discuss the effects of the uncertainties in these quantities on the energy spectrum and its time and direction dependence. Finally, we conclude with an overview of various methods for handling these astrophysical uncertainties. IOP Publishing 2017-06-26 Article PeerReviewed Green, Anne M. (2017) Astrophysical uncertainties on the local dark matter distribution and direct detection experiments. Journal of Physics G: Nuclear and Particle Physics, 44 (8). 084001. ISSN 1361-6471 http://iopscience.iop.org/article/10.1088/1361-6471/aa7819/meta doi:10.1088/1361-6471/aa7819 doi:10.1088/1361-6471/aa7819 |
| spellingShingle | Green, Anne M. Astrophysical uncertainties on the local dark matter distribution and direct detection experiments |
| title | Astrophysical uncertainties on the local dark matter distribution and direct detection experiments |
| title_full | Astrophysical uncertainties on the local dark matter distribution and direct detection experiments |
| title_fullStr | Astrophysical uncertainties on the local dark matter distribution and direct detection experiments |
| title_full_unstemmed | Astrophysical uncertainties on the local dark matter distribution and direct detection experiments |
| title_short | Astrophysical uncertainties on the local dark matter distribution and direct detection experiments |
| title_sort | astrophysical uncertainties on the local dark matter distribution and direct detection experiments |
| url | https://eprints.nottingham.ac.uk/43779/ https://eprints.nottingham.ac.uk/43779/ https://eprints.nottingham.ac.uk/43779/ |